Modern architectures are developing in the direction of tall buildings and complex structures,and the theoretical analysis and the design experience have seriously lagged behind the construction of super high-rise str...Modern architectures are developing in the direction of tall buildings and complex structures,and the theoretical analysis and the design experience have seriously lagged behind the construction of super high-rise structures.Structural form selection,especially the case based reasoning (CBR) based structural form selection,is a promising tool for the construction of high-rise structures.In view of the limit of cognitive ability of domain experts,a BP (back propagation)-PSO (particle swarm optimization)-based intelligence case retrieval method for high-rise structural form selection is proposed.The CBR-based case retrieval method and the construction of the BP-PSO neutral network are introduced.And then the BP-PSO-based case retrieval method is validated by some engineering cases.The results of training and prediction indicate that the proposed method has good ability to retrieve the cases of high-rise structures.展开更多
简述北方学院体育馆的工程概况,结合建筑造型和使用功能,提出网架、双向平底桁架、双向梭形桁架、双向张弦梁、弦支穹顶等5种结构方案,分别利用MST 2011和MIDAS Gen Ver.800两种软件在恒载、活载、风载、温度和地震作用下对5种方案进行...简述北方学院体育馆的工程概况,结合建筑造型和使用功能,提出网架、双向平底桁架、双向梭形桁架、双向张弦梁、弦支穹顶等5种结构方案,分别利用MST 2011和MIDAS Gen Ver.800两种软件在恒载、活载、风载、温度和地震作用下对5种方案进行建模计算,从结构变形、内力分析、经济性、美观性等多个方面进行对比分析,发现弦支穹顶方案结构刚度大、用钢量适中、反力较为均匀,为优先选用方案,可为类似工程在结构选型上提供参考。展开更多
基金supported by the National Natural Science Foundation of China (Grant No. 61040031)the Technological Project of Henan Province (Grant No. 082102210066)
文摘Modern architectures are developing in the direction of tall buildings and complex structures,and the theoretical analysis and the design experience have seriously lagged behind the construction of super high-rise structures.Structural form selection,especially the case based reasoning (CBR) based structural form selection,is a promising tool for the construction of high-rise structures.In view of the limit of cognitive ability of domain experts,a BP (back propagation)-PSO (particle swarm optimization)-based intelligence case retrieval method for high-rise structural form selection is proposed.The CBR-based case retrieval method and the construction of the BP-PSO neutral network are introduced.And then the BP-PSO-based case retrieval method is validated by some engineering cases.The results of training and prediction indicate that the proposed method has good ability to retrieve the cases of high-rise structures.
文摘简述北方学院体育馆的工程概况,结合建筑造型和使用功能,提出网架、双向平底桁架、双向梭形桁架、双向张弦梁、弦支穹顶等5种结构方案,分别利用MST 2011和MIDAS Gen Ver.800两种软件在恒载、活载、风载、温度和地震作用下对5种方案进行建模计算,从结构变形、内力分析、经济性、美观性等多个方面进行对比分析,发现弦支穹顶方案结构刚度大、用钢量适中、反力较为均匀,为优先选用方案,可为类似工程在结构选型上提供参考。
